Perhaps you should try some spelling variations:
"element sampling algorithm" » "element mining algorithm" (Expand Search), "sediment sampling algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "client sampling algorithm" (Expand Search)
"elements upon algorithm" » "elements ppo algorithm" (Expand Search), "elements fusion algorithm" (Expand Search), "elements pso algorithm" (Expand Search), "elements ppm algorithm" (Expand Search)
"elements de algorithms" » "elements _ algorithms" (Expand Search), "elements ml algorithms" (Expand Search), "elements rl algorithms" (Expand Search), "elements fe algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "elements res algorithms" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("elements upon algorithm") OR ((("element sampling algorithm") OR ("elements de algorithms"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elements upon algorithm\") OR (((\"element sampling algorithm\") OR (\"elements de algorithms\"))))".
• Removing quotes may allow a broader search: (( elements upon algorithm ) OR ((( element sampling algorithm ) OR ( elements de algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("elements upon algorithm") OR ((("element sampling algorithm") OR ("elements de algorithms"))))*.